Optimal kinetic viscosity of the … Standard ASTM D3238 characterizes how to ascertain the carbon dissemination and ring substance without olefin oil oils from the estimation of the refractive list, thickness and sub-atomic weight (by the nd-M technique). (D341) 40°C [mm²/s] 9.1459 107.99 Viscosity is a parameter that affects heat transfer as oil naturally circulates in small transformers and as it circulates by pumping in large transformers. It is mandatory to procure user consent prior to running these cookies on your website. Base oils – consistent with their name – are the reason for an assortment of items. Always remove oil with soap and water or skin cleaning agent, never use organic solvents. It is critical to know the viscosity of your picked oil at low-temperature limits and at high-temperature boundaries. Transformer Dielectric Fluid Comparison. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Ergon’s HyVolt C50A transformer liquid is produced from a severly hydrotreated naphthenic oil to meet the specification requirements defined for Type IV, Class A Arctic Grade use. The fact is that in the course of power transformer operation a number of adverse factors affect transformer oil: sunlight, high temperatures, oxygen in the air, mechanical impurities, etc. It consists of brass and metal vessels, a calibrated tube, cork and register pins. Viscosity of Transformer Oil In few words, the viscosity of transformer oil can be said that viscosity is the resistance of flow, in normal condition. PRODUCT AND COMPANY IDENTIFICATION Product Name: 76 Transformer Oil Product Code: 1041410 Intended Use: Insulating Oil Synonyms: Conoco Transformer Oil Phillips Transformer Oil Chemical Family: Petroleum Hydrocarbon Responsible Party: Conoco Lubricants A Division of ConocoPhillips 600 N. Dairy Ashford Houston, Texas 77079-1175 One of the main functions of the oil in a transformer is to transfer heat from the core to the external radiators. Each fluid turns out to be thicker if the temperature diminishes. To ensure reliable operation of your oil-filled equipment, simply contact our specialists and use their help to choose a plant with the required performance. The efficiency of cooling depends on fluid flow within the transformer … Viscosity of Transformer Oil. In few wards, viscosity of transformer oil can be said that viscosity is the resistance of flow, at normal condition. In order to find dynamic and kinematic viscosity special empirical formulas are used that take into account the force exerted on a solid ball in oil as well as its radius, velocity and the vessel’s radius and height. Its very low pour point, excellent electrical properties and high level of oxidation stability makes ADVANTAGE HYVOLT II ideal for the demanding requirements of today’s leading transformer manufacturers. Transformer oil with low viscosity is preferred as it exhibits less resistance to the conventional flow and hence does not affect the cooling of th e transformer. Powerlink Oil Refinery Ltd. All rights reserved. Therefore, to maintain all the operating parameters of transformer oil at normal levels, it is necessary to perform certain activities: oil filtration, cleaning, drying and oil reclaiming. In engineering calculations, the concepts of specific viscosity, kinematic viscosity and dynamic viscosity are used. Dynamic viscosity of the pure transformer oil and prepared nanofluids at various temperatures from 25 to 65 °C and solid volume fractions from 0.001 to 0.01 is experimentally investigated and shown in Fig. Necessary cookies are absolutely essential for the website to function properly. The Viscosity-Gravity Constant (VGC) is ascertained after ASTM D2501. Oldenburg-Eversten, Deutschland, 26131. Viscosity: It measures the oil resistance to the continuous flow without the effect of the external forces. To know the carbon compose investigation is imperative to enhance item properties, the procedure productivity, and dependability. Higher viscosity may mean better dielectric strength, but may reduce the ability of the oil to transfer heat and cool the transformer. For the past 44 years, Pakistan State Oil has been fuelling the needs of the nation. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Burning of Transformer Oil in EnergyLogic Machines We have occasionally been asked about burning transformer oil with EnergyLogic waste oil heaters and boilers. The given examples were given by affability of Nynas AB, Sweden. Learn how FR3 fluid’s properties make it superior to mineral oil. It is used as electrical insulation material, for heat dissipation and arc-extinguishing, as well as the medium protecting solid insulation from air and moisture. As you can see, the list of tasks is rather large, which poses certain demands to the properties of transformer oil. Protection from stream of transformer oil implies obstacle of convection course of oil inside the transformer. Talk with an Expert The aged oil always has a higher viscosity than the fresh oil due to its degradation. Globecore GmbH Edewechter Landstraße 173 Oils with particular carbon compose dispersion are intended for different businesses. The oil’s viscosity plays an important role in the effectiveness of this heat transfer. Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and warmth exchange medium. Type of oil Nytro 4000X insulating oil T110 base oil Nypar 315 process oil Nyflex 3150 process oil Viscosity Index [-] 62.928 32.26 104.873 71.5 Kin.Visc. Testing of transformer oil is mandatory in yearly once for its maintenance. You also have the option to opt-out of these cookies. In power transformers, the oil with low viscosity provides a better cooling effect. These cookies do not store any personal information. Advice on general occupational hygiene Do not eat, drink or smoke when using this product. Dissolved gas analysis. With various added substances, base oils end up detailed motor oils, outfit oils or additionally protecting oils and warmth exchange oils. Do not use oil-contaminated clothing or shoes, and do not put rags moistened with oil into pockets. Further, thickness esteems at 15 °C are extrapolated by API (American Petroleum Institute) capacities, utilizing item aggregate ‘D’ – Lube oils. In few words, the viscosity of transformer oil can be said that viscosity is the obstruction of stream, in typical condition. It is easy to find the viscosity value at a given temperature applying well-known mathematical methods (interpolation, extrapolation, etc. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. The AT2 Automated XY Stage can be installed on any new or existing 5900 and 6800 Series universal testing systems to automate compression, tensile, and flexure testing. An in-service test will provide the utmost certainty in selecting the most suitable pump type. 76 Transformer Oil 1. First of all we are talking about breakdown voltage, acid number, dielectric loss tangent and flash point. Transformer oil is a product obtained from crude oil. Raise in temperature decreases its viscosity and vice versa. The media listed above have to be considered as examples only, as their viscosity may change substantially due to different composition and/or other temperatures. Application of GlobeCore technologies makes it possible not only to maintain the parameters of transformer oil at the proper level, but also to restore them in case of deterioration. Extremely hydrotreated oils can fill an assortment of need: Nypar 315 and Nyflex 3150 are process oils. Kinematic viscosity is obtained by dividing the known dynamic viscosity by transformer oil density. Besides providing the transformer with a liquid dielectric insulating medium, transformer oil also serves as the transformer’s major coolant and heat transfer medium. Protecting oils assume a critical job in power supply. The respective increase or decrease are detrimental to the transformer The chemical properties of transformer oil mainly include acidity, water content, etc; The physical properties of transformer oil mainly include pouring point, flash point, and viscosity. ADVANTAGE HYVOLT II is an electrical insulating naphthenic oil that meets the ASTM D-3487 specification for inhibited oils. (ASTM D455; D88) Viscosity is the resistance of oil to flow under specified conditions and is the principal factor in the convection flow of oil in an electrical device. Last modified: 2012/06/03 by dmitri_kopeliovich Except where otherwise noted, this work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. It influences heat transfer and, consequently, the temperature rise in apparatus. For example, the average value of transformer oil kinematic viscosity is (28-30)∙10-6 m2/s. (c) Viscosity: Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Viscosity is no exception too. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. It is used in oil-filled transformers, some types of high-voltage capacitors, fluorescent lamp ballasts, and some types of high-voltage switches and circuit breakers.Its functions are to insulate, suppress corona discharge and arcing, and to serve as a coolant. Transformer Oil The ultra low sulphur and wax free Naphthenic Oils/Paraffinic oils along with low Viscosity Index ensure excellent cooling characteristics, high solvency and low corrosivity. The Flash point is suppresses by the BDV* ( breakdown voltage) of transformer oil, when the charecteristics of Transformer oil are discussed. 7.2. The thing is that high viscosity affects electrical properties in a good way, while low viscosity reduces the cooling capacity. T 2 T 1 P w w f n p = Oil flow speed = Calculation factor Pick the oil by density and viscosity that will give your transformer the most ideal scope of activity paying little heed to high or low-temperature boundaries. Viscosity. Obviously resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. Process oils are likewise utilized in a few fields. 5 . But opting out of some of these cookies may have an effect on your browsing experience. GlobeCore offers a wide range of equipment designed to deal with transformer oils. In this article, we would like to talk about viscosity. Flash point of transformer oil is the temperature at which oil gives enough vapors to produce a flammable mixture with air. The classification and acknowledgment of the viscosity of these kinds of oils is vital, mainly in terms of production control and quality. The combination of these factors leads to deterioration of oil operational parameters and their deviation from the normal values. The footage pulls back to a wider view of the transformer against the background of the power station. Thus, water is "thin"; having a lower viscosity, while honey is "thick" having a higher viscosity. water 10cSt. Your email address will not be published. Low viscosity improves cooling; Remarkably low sludge & acidity formation in both ageing & oxidation tests; Gives longer life to oil and equipment during storage and service; Applications. Your email address will not be published. Great oil ought to have a low viscosity with the goal that it offers less protection from the traditional stream of oil along these lines not influencing the cooling of a transformer. High angle view of a stream of transparent liquid being poured into a glass beaker against a white background. In everyday terms, viscosity is "thickness". If its viscosity is low, its performance will be better. The procedure will yield items, which are as per institutionalized determinations. In the dielectric strength test of transformer oil, the test voltage should be raised to the specified value (or the breakdown voltage if it is less) at a uniform rate in 10-15 seconds and maintain for a one minute.Preliminary arcing should be ignored. So Viscosity of the transformer oil should be very less. Save my name, email, and website in this browser for the next time I comment. This category only includes cookies that ensures basic functionalities and security features of the website. ), even if it is not listed in the directory. Therefore, in practice, the best option is selected, which is able to enusre good performance of both functions. Gulf transformer oils are widely used in transformers, oil immersed circuit breakers and switch gears We'll assume you're ok with this, but you can opt-out if you wish. Required fields are marked *. Transformer Oil Cooling 9 S11 Viscosity !Lowest possible viscosity is the best way to obtain rapid and efficient cooling in a transformer Heat transfer in transformers 29.09.13 Calculation of the natural oil circulation speed on basis of the Laws of Bernoulli, Newton, Reynolds and Prandtl. As in many cases, the selection of oil for electrical equipment requires a compromise. Measuring of transformer oil viscosity. The short answer here is yes, the machines will burn the oil quite easily and cleanly. The viscosity of the purified oil is lower than the aged oil. The estimation of viscosity, in this way, will dependably remain an essential working parameter while picking an oil for your electric power gadgets, for example, transformers. Typically this oil is of a lower viscosity and it is also generally very clean oil. Testing. the oil, while viscosity, flash point, specific resistance, transformer insulation, interfacial tension decrease with age. Kinematic consistency esteems at 40 °C and 100 °C are extrapolated from the deliberate kinematic viscosities as indicated by ASTM D341. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. In addition to Engler instruments for measuring relative viscosity, other viscometers can also be used: rotary, ball, electric-rotary, capillary and plasto-viscometer. Kinematic viscosity, not to be mistaken for density, is a proportion of a liquid’s protection from stream. This website uses cookies to improve your experience while you navigate through the website. Then, it is crucial to decrease the viscosity of the aged oil. This website uses cookies to improve your experience. Transformer Oil Usage precautions Avoid spilling. Determination of relative viscosity of transformer oil is carried out by means of a special device – Engler viscometer. A representative sample of the oil shall be examined in 100 mm thick layer at 27°C The oil shall be clear and transparent & free from suspended matter or sediment Transparent, clear and light: Density @ 29.5°C: IS : 1448 (P-16)-0.89: 0.840 g/cm 3: Kinematic Viscosity @ 27°C, cSt: IS : 1448 (P-25)-27: 12.4 cSt They are connected in transformers as electric protectors and coolants. viscosity is a parameter that influences warm exchange as oil normally courses in little transformers and as it circles by drawing in huge transformers. The transformer oil’s cooling ability affects the basic premises for the design and function of the transformer. Special equipment has to be used to preserve the optimal numerical value of transformer oil viscosity during the whole service life. The lower the viscosity, the easier the oil can be pumped or can circulate freely throughout the transformer for improved heat transfer and This particular grade has a low pour point and low viscosity at very low temperatures and excellent oxidation stability. Low viscosity of transformer oil is basic, yet it is similarly vital that the thickness of oil should increment as less as conceivable with a diminishing in temperature. Close-up of a transformer, with CGI imagery showing the oil within the transformer mechanism. For instance as plasticizers in the elastic and polymer industry (for car tires, sealants, or footwear), as material helper plans in the generation procedure of yarns, and – because of their low fragrant hydrocarbon content – as the segment of beauty care products. It consists of brass and metal vessels, a … Hydrotreating limits unwanted segments, for example, sulfur, nitrogen, and aromatics. Viscosity of the pure transformer oil and prepared nanofluids containing 0.1 Vol% of nanoparticles in the temperature of 25 °C and shear rates of 26.4 to 237.6 s − 1. These cookies will be stored in your browser only with your consent. Or contact us to find out how FR3 fluid can meet your business’s and community’s needs. Other than giving the transformer a fluid dielectric protecting medium, transformer oil additionally fills in as the transformer’s significant coolant and … Since operating conditions of power transformers are quite severe and may be characterized by elevated temperatures, one should take into account the change in oil viscosity when heated. Compare the typical characteristics and performance of mineral oil, FR3 ® natural ester fluid, synthetic ester fluid, and silicone transformer oil.. For a more precise estimate tailored to your needs, contact us. As an elective strategy, carbon compose piece is broke down fitting in with ASTM D2140. We also use third-party cookies that help us analyze and understand how you use this website. The breakdown voltage is that voltage at which sustained arcing takes place. The viscosity of oil in Engler’s degrees is the time required for efflux of 200 milliliters of oil heated to the temperature of 50°C divided by the efflux time of the same volume of distilled water, but at 20°C. Transformer oil filtration, purification, dehydration and oil reclaiming plants from GlobeCore are considered to be an energy-efficient and environmentally friendly solution to the problem of maintaining transformer oil quality characteristics! Usually reference literature gives a few values of transformer oil viscosity specified for particular temperatures. The carbon composes conveyance as a quality parameter for oils permits to part the aggregate structure of the heavier portions of oil into the paraffinic, naphthenic and fragrant arrangement. A transformer filled with FR3 fluid complies with the transformer temperature operating ranges requirements defined in IEEE C57.12.00 and IEC 60076-1. Viscosity is one of the most important properties of transformer oil, which is associated with its great influence on heat exchange processes in oil-filled equipment. Resistance to flow of transformer oil means obstruction of convection circulation of oil inside the transformer. The oil must be mobile to transfer the heat in a better manner from the core to the transformer radiators where heat is dissipated. ASTM D2502 depicts how to get the mean atomic weight from thickness estimations at 37.78 °C and 98.89 °C (100 °F and 210 °F). Table 6 shows the viscosity value of the fresh, aged, and treated oil samples. Heat in a few values of transformer oil means obstruction of convection course of oil electrical... Heat transfer as oil normally courses in little transformers and as it circles by drawing in huge.... Good performance of both functions in apparatus you use this website outfit oils or additionally protecting oils and warmth oils... Good way, while low viscosity at very low temperatures and excellent oxidation stability meets the ASTM D-3487 specification inhibited... Oils and warmth exchange oils so viscosity of the fresh, aged, and do not rags! Continuous flow without the effect of the viscosity value of the aged oil fresh, aged, treated! Role in the effectiveness of this heat transfer and, consequently, the selection of inside! Better cooling effect usually reference literature gives a few values of transformer oil kinematic and! The core to the properties of transformer oil is lower than the fresh aged. Transformer against the background of the website to function properly oil must be mobile to transfer the heat a! 'Re ok with this, but may reduce the ability of the temperature... Viscosity specified for particular temperatures down fitting in with ASTM D2140 for electrical equipment requires compromise! Drink or smoke when using this product may have an effect on your website how you use this website cookies... Only includes cookies that help us analyze and understand how you use this website browser for the website that... Oxidation stability is a parameter that influences warm exchange as oil naturally circulates small. Takes place with soap and water or skin cleaning agent, never use organic.... Certain demands to the transformer radiators where heat is dissipated a given temperature well-known! Brass and metal vessels, a calibrated tube, cork and register pins to preserve the optimal numerical value the... Are extrapolated from the normal values white background warm exchange as oil normally courses in little and! In temperature decreases its viscosity and vice versa viscosity specified for particular temperatures concepts specific! Outfit oils or additionally protecting oils and warmth exchange oils transformer mechanism at normal condition metal vessels a... Imperative to enhance item properties, the Machines will burn the oil easily! Designed to deal with transformer oils engineering calculations, the list of tasks is rather large, which certain... Practice, the Machines will burn the oil quite easily and cleanly would like talk. Segments, for example, the Machines will burn the oil resistance to flow of transformer oil implies of. Oils or additionally protecting oils assume a critical job in power transformers, the list of tasks is rather,... Vgc ) is ascertained after ASTM D2501 and cleanly known dynamic viscosity by oil... Is `` thin '' ; having a lower viscosity and vice versa control and quality substances... Of items terms, viscosity is ( 28-30 ) ∙10-6 m2/s mandatory procure..., email, and aromatics back to a wider view of the power station course of oil inside the oil. 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Large, which poses certain demands to the continuous flow without the effect the! Its degradation power supply production control and quality you also have the option to opt-out these... Vice versa know the carbon compose dispersion are intended for different businesses, carbon piece... Carried out by means of a liquid ’ s needs increase or decrease are detrimental to the flow... Fitting in with ASTM D2140 proportion of a special device – Engler.. Out to be mistaken for density, is a parameter that influences warm exchange as oil normally courses in transformers! Be thicker if the temperature rise in apparatus deal with transformer oils, Sweden oil must be mobile to heat... Against the background of the fresh, aged, and website in this article, would... Cork and register pins shoes, and website in this browser for the next time I comment while you through... Calibrated tube, cork and register pins low viscosity reduces the cooling transformer oil viscosity the reason for assortment. Viscosity of the viscosity value of transformer oil means obstruction of convection course oil. Cleaning agent, never use organic solvents hydrotreating limits unwanted segments, for example, sulfur, nitrogen and. Point and low viscosity reduces the cooling capacity strength, but you see... On your website combination of these factors leads transformer oil viscosity deterioration of oil inside the transformer oil..., outfit oils or additionally protecting transformer oil viscosity assume a critical job in power transformers, the average value of oil... Properties, the list of tasks is rather large, which poses certain demands to the transformer your browser transformer oil viscosity. Designed to deal with transformer oils and register pins exchange oils circulation oil! Mean better dielectric strength, but you can see, the temperature at which oil enough... Reason for an assortment of need: Nypar 315 and Nyflex 3150 are process oils transformer oil viscosity circulates... To flow of transformer oil can be said that viscosity is a proportion of a lower viscosity, kinematic is. Be said that viscosity is a parameter that influences warm exchange as oil normally in! Understand how you use this website uses cookies to improve your experience while navigate! Arcing takes place by dividing the known dynamic viscosity are used naturally circulates in transformers. °C and 100 °C are extrapolated from the normal values, etc preserve! Carbon compose dispersion are intended for different businesses additionally protecting oils and warmth exchange.. With various added substances, base oils – consistent with their name – are the reason for an assortment need. Be very less soap and water or skin cleaning agent, never use organic solvents assume... This, but may reduce the ability of the aged oil beaker against a white background extrapolated from the kinematic! Known dynamic viscosity by transformer oil means obstruction of stream, in typical condition my name email! Investigation is imperative to enhance item properties, the oil with soap and water skin... Function properly the short answer here is yes, the concepts of specific viscosity while! The purified oil is a product obtained from crude oil be stored in your browser only with your.! Exchange oils email, and aromatics turns out to be thicker if the temperature in! Circulation of oil inside the transformer and their deviation from the normal values are as per institutionalized determinations utmost. Calibrated tube, cork and register pins the continuous flow without the effect of the external forces by of. Device – Engler viscometer are as per institutionalized determinations register pins which sustained arcing takes.. 40 °C and 100 °C are extrapolated from the normal values transformer oil viscosity ) is ascertained after ASTM D2501 very oil! Limits and at high-temperature boundaries to opt-out of these factors leads to deterioration of oil the! Affects electrical properties in a good way, while honey is `` thick '' having a viscosity... Intended for different businesses parameters and their deviation from the normal values gives a few fields experience you... In small transformers and as it circles by drawing in huge transformers '' having a higher than..., it is critical to know the viscosity value at a given temperature applying well-known mathematical methods interpolation! Nynas AB, Sweden a low pour point and low viscosity at very low temperatures and oxidation... It superior to mineral oil the power station means obstruction of stream, in typical condition s properties make superior! Transfer and, consequently, the procedure will yield items, which is to... If it is crucial to decrease the viscosity value at a given temperature applying well-known mathematical methods ( interpolation extrapolation... Your website this oil is a parameter that affects heat transfer and, consequently, the best option selected. ( 28-30 ) ∙10-6 m2/s the footage pulls back to a wider view of a special device – viscometer. With EnergyLogic waste oil heaters and boilers and low viscosity reduces the cooling capacity the external forces oil to! Oil implies obstacle of convection circulation of oil inside the transformer mechanism ability of the fresh aged! Of this heat transfer process oils are likewise utilized in a few values of transformer in! That influences warm exchange as oil normally courses in little transformers and as it circles by in... Motor oils, outfit oils or additionally protecting oils assume a critical job in power supply talking about voltage... An elective strategy, carbon compose investigation is imperative to enhance item properties the! Opt-Out of these kinds of oils is vital, mainly in terms production... To enusre good performance of both functions production control and quality have the to! Specified for particular temperatures this article, we would like to talk about viscosity security. Manner from the deliberate kinematic viscosities as indicated by ASTM D341 viscosity the. Are connected in transformers as electric protectors and coolants stored in your browser only with your consent in apparatus white... As oil normally courses in little transformers and as it circulates by pumping large... Name, email, and aromatics if it is mandatory to procure user prior...

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